Post-driving machine.



c. A. GABRIEL.

POST DRIVING MACHINE. APPLICATION I'ILED NOV. :1, 1909.

997,613, Patented July 11, 1911.

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G. A. GABRIEL. POST DRIVING MACHINE. APPLICATION rum) nov. a, 1909.

Patented July 11, 1911.

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C. A. GABRIEL.

POST DRIVING MACHINE.

APPLICATION FILED NOV. 8, 1909.

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' Patented July 11, 1911.

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COLUMBIA PLANOORAPH CO., WASHINGTON. D. 8.

CARL ALBERT GABRIEL, 0F UNDERWOOD, MINNESOTA.

POST-DRIVING MACHINE.

Specification of Letters Patent.

Patented July 11, 1911.

Application filed November 8, 1909. Serial No. 526,912.

To all whom it may concern:

Be it known that I, CARL ALBERT GABRIEL, a citizen of the United States, residing at Underwood, in the county of Ottertail and State of Minnesota, have invented certain new and useful Improvements in Post- Driving Machines, of which the following is a specification.

This invention has relation to certain new and useful improvements in post driving machines.

My invention has for its primary object the provision of an improved machine which will operate in an efiicient manner in driving posts upon level or uneven surfaces.

Another object of the invention is the construction of a light, portable post driving machine including a driving engine carried upon a platform and a post driving mechanism also carried upon an adjustably held platform which platforms are synohronously actuated for moving said engine and post driving mechanism into vertical position.

With the above and other objects in view, the present invention consists in the com bination and arrangement of parts as will be hereinafter more fully described and particularly pointed out in the appended claims, it being understood that changes in the specific structure shown and described may be made within the scope of the claims without departing from the spirit of the invention.

In the drawings forming a part of this specification, and in which the numerals of reference indicate similar parts in the several views, Figure 1 shows a side elevational view of a post driving machine embodying my invent-ion. Fig. 2 is a top view. Fig. 3 is an enlarged detail of the main carrying frame. Fig. 4 is a detail of the post carrying yoke. Fig. 5 shows a detached de tail of one of the outer tilting frames. Fig. 6 shows a detail of the guide frame. Fig. 7 discloses the adjusting means for holding the guide frame. Fig. 8 shows a side view of the drum carrying frame. Fig. 9 shows a front view of the drum carrying frame. Fig. 10 shows an enlarged detached detail of the pivoted engine supporting frame.

In operating a machine for driving fence posts, as the earths surface is likely to be at an angle to the perpendicular, as in driving posts upon a hillside, an adjust-ing means must be provided which will insure the posts being driven in a vertical position.

In the accompanying drawings, the nu= meral 5 indicates one of the sills and 6 the opposite sill of the main carrying frame as used in my invention, these sills being con nected by means of the end members 7 and 8, and the transverse braces 9. Positioned between the braces 9 is a flooring 10 arranged to receive the operator. Extending transversely across the forward end of the frame are the cross bars 11. Held within the forward frame member 8, and the trans verse member 9, is the rock shaft 13, to which is secured the operating lever 14 having the stub lever 15 to which extends thevrod 16, connected to the latch 17, arranged to work in connection with the rack segment 18, so that the rock shaft 13 may be locked in any desired position. Fixed to the shaft 13 are the similar frame members 20, while these members are connected by means of the side bars 21 and 21. Pivot-ally held within the side bars 21 and 21, is the transverse rock shaft 12 provided with an operating lever 23 constructed similar to the lever 14 above described, and which is arranged for coaction with the rack segment 24. By means of the lever 14, the outer frame comprising the members 20 and 21 may be tilted laterally.

Firmly held to the transverse rock shaft 12, is an inner frame comprising the side members 27, the two forward frame members 28- and the two rear frame members 29 as disclosed in Figs. 8 and 9. One of the frame members 27, hasa portion removed to receive the spirit level 30, while spanning from the upper frame bar 28 to the frame bar 29, is the bearing bracket 32 carrying the bearing 33 arranged to revolubly receive the drum shaft 34. This shaft carries the drum 35 to which is secured the operating cable 36. This drum shaft 34 is provided with the clutch collar 39 arranged for coaction with the slidably held clutch collar 40, also carried upon this shaft. Secured to the upper frame member 28, is the bracket 42 having the pivot pin 43, which carries the shift-ing lever 45 revolubly secured to the slidably held clutch collar 40. Secured to and forming a part of the clutch collar 40 is the drive pulley 47, which loosely turns upon the shaft 34. By means of the shifting lever 45 the drum 35 can be brought into connection with the drive pulley L7.

Held within the forward frame bars 28, is the bolt 48, which pivotally supports a forked yoke 50, while threading into the upper frame member 29 is the set bolt 52. The set bolt 52 is arranged to come into engagement with the end 53 of the yoke 50, so that this yoke which is pivotally held may be adjustably secured to its carrying frame. Extending from the yoke are the two oppositely positioned arms 54 held in parallel and carrying the bolts 55, which pivotally support the guide frame bars 56 connected near the upper end by means of the cross bar 57 and intermediately by means of the bar 58. This yoke 50 upon one side carries the set bolt 58", upon which set bolt 58 is slidably held the slotted bar 60, which has its upper end pivotally secured by means of the bolt 61 to one of the guide frame bars 56. By means of the slotted bar 60 the guide frame may be held at any desired angle relative to the yoke forming its base.

Held between the guide frame bars 56, is the grooved hammer 63 having the eye 64 to which the cable 36 is secured. This hammer is vertically reciprocated between the guide frame bars, the cable 36 at its upper end passing over the sheave 66. The intermediate connecting member 58 is provided with the pivot bolt 68 supporting the lever 67 which may be brought below the hammer 63 when this hammer is held in an inoperative condition.

Slidably held within the side frame bars 56 is a collar 68 having the slotted ears 69, this collar being of a size to receive the posts to be driven. In Fig. 1 a post a is shown in position ready to be driven.

For convenience in leveling the outer frame carrying the drum, the member 20 near the inner end of the carrying frame is provided with the lever 14.

From the foregoing it will be seen that I provide a hammer guiding frame which is pivotally and adjustably secured to a yoke, that this yoke is pivotally and adjustably secured to a pivotally held drum carrying frame, and that this frame is again in turn pivotally secured to the main carrying frame.

-Held within the main frame members 7 and 9 is the rock shaft 50 having the lever 70 arranged for coaction with the rack segment 72, this shaft being fixed to the end frame members 73 which in turn give support to the side frame members 74. Held within the frame members 74 is the rock shaft 75 having the operating lever 7 6 arranged for coaction with the rack segment 77. The shaft 75 carries a platform frame comprising the members 78 and 79 giving support to the platform 80 which carries the driving engine 81 of any approved pattern. To the driving shaft 82 of the engine is secured the driving pulley 83 and passing over the pulleys 83 and 47, is the driving belt or chain Set. Secured to the main frame member 5, is the bar 90 carrying the pin 91 which in turn carries the bar 92, from which extends the arbor 92, carrying the tension pulley 94, which insures the belt 84 being'held in positive Working contact with the supporting pulleys.

Whenever the levers 14L and 23 are adjusted in bringing the guide frame in vertical position, the levers and 76 are synchronously operated to bring the engine platform on a level with the drum platform. By means of these levers the platforms and their connecting frames may be adjusted in a horizontal plane.

The main carrying frame is of a size so that the same may be conveniently carried by an ordinary vehicle and when not in use, the slotted bar 60 is released at its lower end so that the guide frame may be folded back upon the drum.

The operation of my device is very simple. The post to be driven is placed within the collar 68. The engine is then started to rotate the clutch pulley 4:7. The operator then, by means of the shifting lever brings this pulley into engagement with the drum 35 to wind up the cable 36 and raise the hammer, the proper height being attained, the pulley 4:7 is forced out of engagement with the drum permitting the hammer to drop upon the fence post. This dropping movement of the hammer is continued until the post has been driven the required depth. The device is readily operated and the platform adjustment can be speedily made.

If desired, the operating strand 36, may be wound about the drum one or more times, the end of the strand being held by an operator, so that as the rope or strand is drawn taut, the same is operated by the drum. On releasing the strand, from engagement with the drum, the weight 63, will drop.

Having thus described what is claimed is:

1. In a post driving machine the combination with a main oblong carrying frame including longitudinal members connected near their ends by transverse members and having transversely arranged cross bars be tween the center and the ends of said longitudinal members and connected thereto, a rock shaft rotatably held within the forward transverse frame member and one of the transversely arranged bars, an operating lever carrying a stub lever, said operating lever being secured to the said rock shaft and said stub lever being connected to a latch, a rack segment, said stub army said invention ranged to work in connection with said rack segment so that the rock shaft may be locked in various positions, transverse frame members connected by means of side bars, said transverse frame members being mounted upon the said rock shaft, a trans verse rock shaft pivotally held within the said side bars, an operating lever carried by said transverse shaft, said last named lever carrying a lock arranged for co-action with a rack segnient carried by one of said side bars, an inner frame secured to said transverse rock shaft, said frame comprising side members and front and rear members, bearing brackets mounted upon said last named frame and arranged to revolubly receive a drum shaft, a drum shaft revolubly carried by said frame, a drum mounted upon said shaft, an operating cable secured to said drum, a hammer connected to said operating cable, a guide frame for said hammer, said guide frame being connected to the last mentioned forward and rear frame members, an engine mounted upon the said main frame, connections between said engine and said drum, means for disconnecting said drum and said engine.

2. In a post driving machine the combination of a main frame and an auxiliary frame pivotally secured to two of the trans verse bars of said main frame for transverse rocking movements therein, means for locking said auxiliary frame in horizontal position, a second auxiliary frame mounted within the first auxiliary, said second auxiliary frame being pivotally secured to the longitudinal bars of the first auxiliary frame for longitudinal rocking movements therein, means for locking said second auxiliary frame in horizontal position, an engine secured to said second auxiliary frame, a drum connected to said main frame, a series of auxiliary frames connected to said main frame and to one another for transverse and longitudinal movement in respect to said main frame, said drum being mounted upon said series of auxiliary frames, a post driving hammer within a guide frame, said guide frame being pivotally connected with the said main frame, adjusting means upon said guide frame, means for locking said hammer in an inoperative position, connections between said engine and said drum, means for disconnecting said drum from said engine, a cable connection between said drum and said hammer.

In testimony whereof I affix my signature, in presence of two witnesses.

CARL ALBERT GABRIEL.

Witnesses:

ARTHUR RAY SUooY, BURT M. HALSTEAD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

